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发布者:微桥FP6189 发布时间:2010-1-3 阅读:3925次    关键字: FP6189
FP6189-3A, 23V ,380KHz Step-Down Converter


FP6189  3A, 23V ,380KHz Step-Down Converter
General Description
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    The FP6189 is a buck regulator with a built in internal power MOSFET. lt achieves 3A continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. The device includes cycle-by-cycle current limiting and thermal shutdown protection. Adjustable soft-start reduced the stress on the input source at power-on. The regulator only consumes 20μA supply current in shutdown mode. The FP6189 requires a minimum number of readily available external components to complete a 3A buck regulator solution.

Features
˙3A Output Current
˙Adjustable Soft-Start 
˙0.1Ω lnternal Power MOSFET Switch
˙Stable with Low ESR Output Ceramic Capacitors
˙Up to 95% Efficiency
˙20μA Shutdown Mode Current
˙Fixed 380KHz frequency
˙Thermal Shutdown
˙Cycle-by-Cycle Over Current Protection
˙Wide 4.75 to 23V operating lnput Range
˙Output Adjustable From 0.92 to 21V
˙Available SOP8 Exposed PAD
˙Under Voltage Lockout
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